Side outlet type solar thermal collector

The invention discloses a side outlet type solar thermal collector which comprises a connecting box, an all-glass double-channel vacuum tube thermal collector, a vacuum tube bottom rack, a vacuum tube tail support and a bracket side plate, and is characterized in that an upper water collector pipe and a lower water collector pipe are horizontally fixed in the connecting box through a polyurethane thermal insulation layer; a water outlet of the upper water collector pipe and a water inlet of the lower water collector pipe serving as exchange ports of the collector and a heat exchanger are formed at one side or two sides of the connecting box; the all-glass double-channel vacuum tube thermal collector consists of an outer glass tube, a thermal absorption glass tube, an isolating glass tube and an inner glass tube; and the all-glass double-channel vacuum tube thermal collector, the connecting box, the vacuum tube bottom rack, the vacuum tube tail support and the bracket side plate form the solar thermal collecto